Order Didelphimorphia Author Alfred L. Gardner text 1993 Smithsonian Institution Press Washington and London Editor Don E. Wilson Editor DeeAnn M. Reeder Mammal Species of the World (2 nd Edition) 15 23 book chapter http://doi.org/10.5281/zenodo.7353070 1-56098-217-9 7353070 Metachirus Burmeister, 1854 . Syst. Uebers. Thiere Bras., 1:135 . TYPE SPECIES: Didelphis myosuros Temminck, 1824 . COMMENTS: Hall (1981) followed Pine (1973) in using the name Philander ; see Hershkovitz (1976 , 1981 ) who reaffirmed the use of Philander for the gray four-eyed opossums.